NB! Perhaps one of the moderators will split this and the previous post into a new thread due to the complexity?
Welcome aboard, 2014miev. Are you sure you are "prescient"?
:? :lol:
(Just joking, english ain't my native language either.
)
:idea: Some MMC Abb's:
WM -
Workshop Manual
TIM -
Technical Information Manual
BPM -
Body Repair Manual
BMU - BATTERY MANAGEMENT UNIT (BMU)
CMU - MAIN BATTERY AND CELL MONITORING UNIT (CMU)
Beware which Model Year (MY) you pick. There are some differences in the charts.
:idea: I begin with a couple of tools from the (from:
WM, MY13:
:!:
*CAUTION* If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior to this diagnosis, always diagnose the CAN bus lines.
:?: Have you checked and cleared the CAN bus for any faults?
Error list:
- P0ABF Code No. P0ABF: Battery current sensor error (BMU)
- P1A38 Code No. P1A38: CMU operation count error (BMU)
- P1A39 Code No. P1A39: Charging state signal error (BMU)
- P1AE6 Code No. P1AE6: EEPROM error (BMU)
- P1B2F Code No.P1B2F: BMU battery pack type inappropriate
So far, so good.
Breakdown of the codes:
- Code No. P0ABF: Battery current sensor error (BMU)
is
- indicating
- Malfunction of the BMU traction battery current sensor system
- triggered by
- P1A40 Traction battery current sensor (high) abnormal
- P1A41 Traction battery current sensor (low) abnormal
- P1A42 Power supply circuit of traction battery current sensor abnormal
- P1A43 Detection circuit of traction battery current sensor abnormal
- Code No. P1A38: CMU operation count error (BMU)
is
- indicating
- Malfunction of the BMU traction battery CMU system
- triggered by
- Code No. P1A39: Charging state signal error (BMU)
is
- indicating
- a big bag of other DTC's.. (37)
- malfunction of the BMU traction battery system
- triggered by
- P1A40 Traction battery current sensor (high) abnormal
- P1A52-P1A5D CMU01-12 battery cell low voltage abnormal
- P1A5E-P1A69 CMU01-12 battery cell high voltage abnormal
- P1A76-P1A81 CMU01-12 battery cell voltage sensor abnormal
- Code No. P1AE6: EEPROM error (BMU)
is
- indicating
- Malfunction of the BMU system
- triggered by
- Code No.P1B2F: BMU battery pack type inappropriate
is
- indicating
- Malfunction of the BMU system
- triggered by
- P1AAB Numbers of cells abnormal (broken URL (P1AA8))
This post has already grown too big, so from here you are on your own. Before I leave, I'll link to two documents in the
Technical Information Manual (TIM):
They hide under TIM\
\54D-ELECTRIC MOTOR UNIT AND MAIN BATTERY
\\BATTERY MANAGEMENT UNIT (BMU) AND MAIN BATTERY
I wish you godspeed on your journey and perhaps you'll will tag along with some jolly good friends from this wonderful community. I hereby hand the baton to the forum crowd. :mrgreen:
PS! I see JoeS just posted "less than a minute ago". He has some good questions to be answered.
